E1013: expected request pattern

Generated from rellum-diagnostics/src/db.rs.

Explanation

Request handlers must start with a request pattern: ok(...), err(...), some(...), none, _, or else. The pattern determines which raw request result the handler accepts.

Common causes

• using a plain identifier as a request handler head
• using a match-only pattern form in a request body
• leaving the pattern out after on

Canonical fixes

• use a supported request pattern

Before:

value ~ request env!("NAME")
    on value => value

After:

value ~ request env!("NAME")
    on some(value) => value

• use _ or else for a fallback handler

Code example

value ~ request env!("NAME")
    on value => value

Links

• RellC diagnostic overview